private void ApplicationBarIconButton_Click(object sender, EventArgs e)
{
CTConnection.LogOut();
this.Dispatcher.BeginInvoke(() =>
{
this.NavigationService.Navigate(new Uri("/MainPage.xaml", UriKind.Relative));
});
}
private void PhoneApplicationPage_BackKeyPress(object sender, System.ComponentModel.CancelEventArgs e)
{
CTConnection.LogOut();
}